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JOURNAL OF LANZHOU JIAOTONG UNIVERSITY  2017, Vol. 36 Issue (3): 92-96    DOI: 10.3969/j.issn.1001-4373.2017.03.017
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Identification of the Model Parameters of Fractional Order Groundwater Pollution by Gradient Regularization Method with Variable Step
XING Li-ying, ZHANG Guo-zhen
1.School of Environmental and Municipal Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China;2.Academy of Civil Engineering&Architecture,Nanyang Normal University,Nanyang  Henan 473061, China
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